CN210604403U - High children acid-base cognitive device of security - Google Patents
High children acid-base cognitive device of security Download PDFInfo
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- CN210604403U CN210604403U CN201921150095.XU CN201921150095U CN210604403U CN 210604403 U CN210604403 U CN 210604403U CN 201921150095 U CN201921150095 U CN 201921150095U CN 210604403 U CN210604403 U CN 210604403U
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Abstract
The utility model discloses a high-safety acid-base cognitive device for children, which relates to the technical field of acid-base detection equipment and aims to solve the technical problem of lower safety factor of the existing equipment.A top wall of a protective box is provided with a burette communicated with the interior of the protective box, acid-base test paper is arranged in the protective box and is positioned below the burette, and a standard colorimetric card is fixedly arranged at the outer side of the protective box; when the device is used, a child can suck a solution to be detected through the rubber-tipped dropper to drip the solution into the burette, the solution to be detected gradually flows downwards along the inner wall of the burette and finally drips onto the acid-base test paper, and then the pH value of the solution to be detected can be detected by comparing the color change of the test paper with a standard colorimetric card.
Description
Technical Field
The utility model relates to an acid-base check out test set technical field, more specifically say, it relates to a high children acid-base cognitive device of security.
Background
A children acid-base cognitive device is an acid-base detection device more suitable for children.
Acid-base check out test set among the prior art refers to fig. 3 and shows, it includes acid-base test paper 2, and during the use, one hand is held acid-base test paper 2, and another hand is dipped in through glass stick 4 and is got the solution that awaits measuring and drip at acid-base test paper 2 middle part, compares with standard colorimetric card 23 according to the colour change of test paper and can judge the pH valve of the solution that awaits measuring.
However, for children, the operation is dangerous, when the children hold the glass rod 4 to drop the dipped solution to be detected to the middle of the acid-base test paper 2, unstable hand holding is easy to occur, the hand is in direct contact with the acid-base test paper 2, if the holding state of the test paper is inclined, the solution to be detected is easy to flow to the hand holding the acid-base test paper 2 after dropping to the middle of the acid-base test paper 2, and if the solution to be detected is strong acid or strong base, the skin of the children is easy to be damaged, the safety factor is low, so that improvement is needed.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a high children acid-base cognitive device of security, it has the higher advantage of factor of safety.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a high children acid-base cognitive device of security, includes hollow protection box, the roof of protection box is equipped with the buret that is linked together with the protection box is inside, be equipped with the acid-base test paper in the protection box, the acid-base test paper is located buret below, the protection box outside sets firmly the standard colorimetric card.
Through adopting above-mentioned technical scheme, during the use, children's accessible rubber head burette absorbs the solution that awaits measuring and drips it to the burette in, and the solution that awaits measuring flows gradually and finally drips to the acid-base test paper along with the burette inner wall on, can compare with standard colour comparison card and can detect the pH valve of the solution that awaits measuring afterwards according to test paper colour change, need not hand and acid-base test paper direct contact in this process, the condition that the solution that awaits measuring flows to the hand behind the acid-base test paper can not appear admittedly to factor of safety is higher.
Furthermore, a paper feeding roller and a paper collecting roller are connected in the protection box in a rotating mode, two ends of the acid-base test paper are fixedly connected with the paper feeding roller and the paper collecting roller respectively, one section of the acid-base test paper is wound on the paper feeding roller, the other section of the acid-base test paper is wound on the paper collecting roller, the end portion of the paper collecting roller is fixedly provided with an installation shaft which is coaxial with the paper collecting roller, and the side wall of the protection box is provided with an installation shaft which is inserted into the installation shaft and rotates.
Through adopting above-mentioned technical scheme, detect the completion back, rotatable installation axle rotates in order to order about the delivery roll to on rolling up the delivery roll with the acid-base test paper that has used, even make the acid-base test paper that does not use transmit to buret below, so that detect next time.
Furthermore, one end of the mounting shaft, which is opposite to the paper collecting roller, extends out of the mounting hole and is fixedly provided with a rotary disc.
Through adopting above-mentioned technical scheme, when the installation axle is rotated to needs, the staff stir the carousel and can be more convenient rotate the installation axle, have promoted the convenience of controlling of rotating the installation axle.
Furthermore, the side wall of the rotary disc is fixedly provided with a power-assisted shifting sheet.
Through adopting above-mentioned technical scheme, press and rotate helping hand plectrum can more laborsaving rotation carousel, and rotate the difficult slippage that takes place of in-process hand, further promoted the control convenience and the stability of rotation installation axle promptly.
Furthermore, the installation shaft side wall is fixedly provided with an elastic pad, and the elastic pad is abutted against the inner wall of the installation hole in an interference manner.
Through adopting above-mentioned technical scheme, keep certain pressure between cushion and the mounting hole, can make the installation axle be difficult for taking place relative rotation with the mounting hole through the biggest static friction power of cushion and mounting hole inner wall, even the state of the acid-base test paper that has used of rolling on the delivery roll is more stable.
Further, the burette is in a funnel shape with a large inner diameter at the top and a small inner diameter at the bottom.
Through adopting above-mentioned technical scheme, can be convenient for children will wait to detect the sample drippage to the buret intraductal, the children of being more convenient for promptly use.
Furthermore, the top wall of the protection box is provided with a titration hole, and the titration tube is inserted into the titration hole in a matching manner.
Through adopting above-mentioned technical scheme, after finishing detecting, can go up the buret and take out from the titration hole to wash the buret, so that carry out subsequent detection.
Furthermore, the lateral wall at the top of the burette is fixedly provided with an extension plate, and the top wall of the extension plate is fixedly provided with a pull ring.
Through adopting above-mentioned technical scheme, when need carry and draw the buret, can with indicate the end to catch on the pull ring can be more stable realization to carrying of buret and draw and control, reduced the probability of hand and buret slippage, control stability higher.
To sum up, the utility model discloses following beneficial effect has:
1. the top wall of the protection box is provided with a burette communicated with the interior of the protection box, acid-base test paper is arranged in the protection box and is positioned below the burette, and a standard colorimetric card is fixedly arranged on the outer side of the protection box; when the device is used, a child can suck a solution to be detected through the rubber-tipped dropper to drip the solution to be detected into the burette, the solution to be detected gradually flows downwards along the inner wall of the burette and finally drips onto the acid-base test paper, and then the pH value of the solution to be detected can be detected by comparing the color change of the test paper with a standard colorimetric card;
2. the device adopts the technical scheme that a paper feeding roller and a paper collecting roller are rotationally connected in a protective box, two ends of acid-base test paper are respectively and fixedly connected with the paper feeding roller and the paper collecting roller, one section of the acid-base test paper is wound on the paper feeding roller, the other section of the acid-base test paper is wound on the paper collecting roller, the end part of the paper collecting roller is fixedly provided with an installation shaft which is coaxial with the paper collecting roller, and the side wall of the protective box is provided with an installation hole for the installation shaft to be inserted and; after the detection is finished, the mounting shaft can be rotated to drive the paper collecting roller to rotate, so that the used acid-base test paper is rolled to the paper collecting roller, namely the unused acid-base test paper is transmitted to the lower part of the burette, and the next detection is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a background art drawing.
In the figure: 1. a protective case; 10. a titration well; 11. a burette; 12. an extension plate; 13. a pull ring; 2. acid-base test paper; 21. a paper feed roller; 22. a paper collecting roller; 23. a standard color comparison card; 3. installing a shaft; 30. mounting holes; 31. an elastic pad; 32. a turntable; 33. a power-assisted shifting piece; 4. a glass rod; 41. a rubber head dropper.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
the utility model provides a high children acid-base cognitive device of security, refers to fig. 1, and it includes hollow protection box 1, and the roof of protection box 1 is equipped with titration hole 10, and titration hole 10 interpolation is equipped with hollow buret 11, and buret 11 is linked together with protection box 1 is inside.
Referring to fig. 1, the burette 11 is funnel-shaped with a large upper inner diameter and a small lower inner diameter. The lateral wall integrated into one piece at buret 11 top has extension board 12, and the laminating of extension board 12 diapire is on protection box 1 roof, and extension board 12 roof integrated into one piece has pull ring 13.
Referring to fig. 1, an acid-base test paper 2 is arranged in a protective box 1, a paper feeding roller 21 and a paper collecting roller 22 are rotatably connected in the protective box 1 through a rotating shaft, two ends of the acid-base test paper 2 are respectively adhered to the paper feeding roller 21 and the paper collecting roller 22, one section of the acid-base test paper 2 is wound on the paper feeding roller 21, and the other section of the acid-base test paper 2 is wound on the paper collecting roller 22. The middle section of the acid-base test paper 2 is positioned below the burette 11, and the top wall of the outer side of the protection box 1 is adhered with a standard colorimetric card 23.
Referring to fig. 2, the mounting shaft 3 is integrally formed at the end of the delivery roller 22, and the mounting shaft 3 and the delivery roller 22 are coaxial. The side wall of the protection box 1 is provided with a mounting hole 30, and the mounting shaft 3 is in clearance fit with the mounting hole 30. An elastic pad 31 is adhered to the side wall of the mounting shaft 3, the elastic pad 31 is preferably rubber, and the elastic pad 31 is in interference contact with the inner wall of the mounting hole 30.
Referring to fig. 2, the end of the mounting shaft 3 opposite to the sheet receiving roller 22 extends out of the mounting hole 30 and is affixed with a turntable 32. The side wall of the rotary disk 32 is integrally formed with a power-assisted shifting piece 33.
The working principle is as follows: during the use, children's accessible rubber head burette 41 absorbs the solution that awaits measuring and drips it to burette 11 in, the solution that awaits measuring flows down gradually along with burette 11 inner wall and finally drips to acid-base test paper 2 on, can compare with standard colorimetric card 23 according to 2 color changes of acid-base test paper afterwards and can detect the pH valve of the solution that awaits measuring, need not hand and acid-base test paper 2 direct contact in this process, the condition that the solution that awaits measuring flows to the hand behind the acid-base test paper 2 can not appear admittedly, thereby factor of safety is higher, inherently treat to improve.
After the detection is finished, the pull ring 13 can be pulled to pull the burette 11 away from the titration hole 10 so as to clean the burette 11 for the next detection.
After the detection is completed, the turntable 32 may be rotated to drive the paper receiving roller 22 to rotate, so as to wind a used portion of the test paper onto the paper receiving roller 22 for the next detection, and after the rotation is completed, the paper receiving roller 22 may not easily rotate under the maximum static friction force of the elastic pad 31 and the mounting hole 30, that is, the state of the used acid-base test paper 2 after the winding is stable.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a high children acid-base cognitive device of security which characterized in that: the test paper box comprises a hollow protection box (1), wherein a burette (11) communicated with the interior of the protection box (1) is arranged on the top wall of the protection box (1), acid-base test paper (2) is arranged in the protection box (1), the acid-base test paper (2) is located below the burette (11), and a standard colorimetric card (23) is fixedly arranged on the outer side of the protection box (1).
2. The high-safety children acid-base cognitive device according to claim 1, wherein: protection box (1) internal rotation is connected with paper feed roller (21) and receipts paper roll (22), the both ends of acid-base test paper (2) respectively with paper feed roller (21) and receipts paper roll (22) fixed connection, one section of acid-base test paper (2) is around establishing on paper feed roller (21), another section is around establishing on receipts paper roll (22), receipts paper roll (22) tip sets firmly installation axle (3) rather than with the axle center, protection box (1) lateral wall is equipped with and supplies installation axle (3) to insert and establish and pivoted mounting hole (30).
3. The high-safety children acid-base cognitive device according to claim 2, wherein: one end of the mounting shaft (3) back to the paper collecting roller (22) extends out of the mounting hole (30) and is fixedly provided with a rotary disc (32).
4. The high-safety children acid-base recognition device according to claim 3, wherein: and an assistance shifting sheet (33) is fixedly arranged on the side wall of the rotary table (32).
5. The high-safety children acid-base cognitive device according to claim 2, wherein: the installation axle (3) lateral wall sets firmly cushion (31), cushion (31) interference butt is in mounting hole (30) inner wall.
6. The high-safety children acid-base cognitive device according to claim 1, wherein: the burette (11) is in a funnel shape with a large inner diameter at the top and a small inner diameter at the bottom.
7. The high-safety children acid-base recognition device according to claim 6, wherein: the top wall of the protective box (1) is provided with a titration hole (10), and the titration tube (11) is inserted into the titration hole (10) in a matching way.
8. The high-safety children acid-base cognitive device according to claim 7, wherein: the side wall at the top of the burette (11) is fixedly provided with an extension plate (12), and the top wall of the extension plate (12) is fixedly provided with a pull ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150095.XU CN210604403U (en) | 2019-07-19 | 2019-07-19 | High children acid-base cognitive device of security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150095.XU CN210604403U (en) | 2019-07-19 | 2019-07-19 | High children acid-base cognitive device of security |
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| Publication Number | Publication Date |
|---|---|
| CN210604403U true CN210604403U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921150095.XU Active CN210604403U (en) | 2019-07-19 | 2019-07-19 | High children acid-base cognitive device of security |
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| CN (1) | CN210604403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563139A (en) * | 2022-03-01 | 2022-05-31 | 金华海关综合技术服务中心 | Stainless steel heat preservation container detection device |
| CN114563139B (en) * | 2022-03-01 | 2024-07-16 | 金华海关综合技术服务中心 | Stainless steel thermal insulation container detection device |
-
2019
- 2019-07-19 CN CN201921150095.XU patent/CN210604403U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563139A (en) * | 2022-03-01 | 2022-05-31 | 金华海关综合技术服务中心 | Stainless steel heat preservation container detection device |
| CN114563139B (en) * | 2022-03-01 | 2024-07-16 | 金华海关综合技术服务中心 | Stainless steel thermal insulation container detection device |
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